Granted Patent
Utility
US 5,332,297 · App. 08/051,963
Charging cut-off valve arrangement for microprocessor-based electropneumatic locomotive brake control system
Inventors:
Brian L. Cunkelman, Richard F. Balukin, George B. Neilson
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Apr 26, 1993
Inventors
Brian L. Cunkelman
Richard F. Balukin
George B. Neilson
Assignee (at issue)
Westinghouse Air Brake Co.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.